CN110239351B - Charging device for rail transit vehicle - Google Patents
Charging device for rail transit vehicle Download PDFInfo
- Publication number
- CN110239351B CN110239351B CN201810190908.1A CN201810190908A CN110239351B CN 110239351 B CN110239351 B CN 110239351B CN 201810190908 A CN201810190908 A CN 201810190908A CN 110239351 B CN110239351 B CN 110239351B
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- Prior art keywords
- vehicle
- collector shoe
- power supply
- charging
- charging device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
- B60L5/39—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a charging device for a rail transit vehicle, which comprises: the electric power storage device is arranged on the vehicle and used for supplying power to the vehicle; the collector shoe is electrically connected with the power storage device and arranged on the rotating shaft; the driving piece is suitable for driving the collector shoe to rotate around the rotating shaft and extend outwards, when a vehicle enters a station, the collector shoe extends out of a vehicle body of the vehicle to be connected with external power supply equipment, and the external power supply equipment charges the power storage device through the collector shoe. Therefore, the process of artificially processing the connection between the charging device for the rail transit vehicle and the power supply equipment can be omitted through the matching of the power storage device, the collector shoe, the rotating shaft and the driving piece, people can be prevented from getting an electric shock, and the charging safety of the rail transit vehicle can be improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a charging device for a rail transit vehicle.
Background
In the related art, rail transit vehicles generally implement power supply to the vehicles by arranging contact rails or pantographs along a route and contacting collector shoes on the vehicles with the contact rails or pantographs. Because a contact rail or a pantograph needs to be arranged along the line of the line, the cost of the power supply mode is high; meanwhile, once one ground of the contact rail or the pantograph fails, the full-line power supply failure may be caused.
The rail transit vehicle is also provided with a power storage device for providing power for the rail transit vehicle, and after the vehicle enters a station and stops, the vehicle-mounted power storage device needs to be charged; after the completion of charging, need the manual work again with on-vehicle electric installation with fill electric pile disconnection, the operation is inconvenient, and manual plug charging device not only prolongs the charge time, has the danger of electrocuteeing in addition.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the charging device for the rail transit vehicle, which can save the process of manually connecting the charging device for the rail transit vehicle with power supply equipment, prevent people from getting an electric shock and further improve the charging safety of the rail transit vehicle.
The charging device for the rail transit vehicle according to the present invention comprises: the electric power storage device is arranged on the vehicle and used for supplying power to the vehicle; the collector shoe is electrically connected with the electric storage device and arranged on the rotating shaft; the driving piece is suitable for driving the collector shoe to rotate around the rotating shaft and extend outwards, when the vehicle enters the station, the collector shoe extends out of a vehicle body of the vehicle and is connected with external power supply equipment, and the external power supply equipment charges the power storage device through the collector shoe.
According to the charging device for the rail transit vehicle, the electric storage device, the collecting shoe, the rotating shaft and the driving piece are matched, so that the process of manually connecting the charging device for the rail transit vehicle with the power supply equipment can be omitted, people can be prevented from getting electric shock, and the charging safety of the rail transit vehicle can be improved.
Optionally, when the rail transit vehicle is out of the station, the collector shoe is received in the vehicle body.
Furthermore, the driving piece is a driving handle, the driving handle is provided with a first limit position and a second limit position, when the driving handle is located at the first limit position, the external power supply equipment is connected with the collector shoe, and when the driving handle is located at the second limit position, the external power supply equipment is disconnected with the collector shoe.
In particular, the drive handle is disposed within a cab of the vehicle.
Optionally, a pull wire is connected between the driving handle and the rotating shaft.
Further, the driving handle is provided with a rack, a gear is arranged at the rotating shaft, and the rack is meshed with the gear.
Specifically, the rotating shaft is a motorized pulley, and the driving handle drives the motorized pulley to rotate in opposite directions at the first limit position and the second limit position.
Alternatively, the vehicle body has a storage groove and an opening/closing door for opening/closing the storage groove, and the collector shoe is located in the storage groove when in the storage position.
Further, the charging device for the rail transit vehicle further comprises: the system comprises an entrance button and a central control unit, wherein when the entrance button is triggered, the central control unit sends an entrance signal to the external power supply equipment, so that the external power supply equipment provides a charging power supply when receiving the entrance signal.
Specifically, the central control unit is further used for controlling the vehicle to send out the arrival prompting information when the vehicle is a preset distance away from the arrival so that the driver can trigger the arrival button.
Optionally, the collector shoe comprises: the cathode structure comprises a cathode region, an anode region and an insulation region, wherein the cathode region corresponds to the cathode, the anode region corresponds to the anode, the insulation region isolates the cathode region from the anode region.
Further, the vehicle-mounted charging device comprises a first switching tube, a second switching tube, a third switching tube and a fourth switching tube, one end of the first switch tube is connected with one end of the second switch tube and is provided with a first node, the other end of the first switching tube is connected with one end of the third switching tube and is provided with a second node, the other end of the second switching tube is connected with one end of the fourth switching tube and is provided with a third node, the other end of the third switching tube is connected with the other end of the fourth switching tube and is provided with a fourth node, the first node is connected to a negative electrode of the electrical storage device, the second node is connected to the collector shoe, the third node is connected to the collector shoe through a first inductor, the fourth node is connected to the positive electrode of the electric storage device through a second inductor, and an energy storage capacitor is further connected between the first node and the fourth node.
Drawings
Fig. 1 is a schematic diagram of an automatic charging system according to an embodiment of the present invention when not connected to a power supply apparatus;
fig. 2 is a schematic diagram of an automatic charging system according to an embodiment of the present invention when connected to a power supply apparatus;
fig. 3 is a schematic diagram of an application method of an automatic charging system according to an embodiment of the present invention;
FIG. 4 is a schematic view of the drive member, shaft and collector shoe of the automatic charging system in a charging position after assembly in accordance with an embodiment of the present invention;
fig. 5 is a schematic view of the automatic charging system with the driving member, the rotating shaft, and the collector shoe assembled in the storage position according to the embodiment of the present invention.
Reference numerals:
an automatic charging system 10;
an inbound button 1;
a collector shoe 2; a driving member 3; a rotating shaft 4;
an in-vehicle charging device 5; a first switching tube 51; a second switching tube 52; a third switching tube 53; a fourth switching tube 54; a first inductance 55; a second inductor 56;
a vehicle body 20; a cab 201;
a power supply device 30; a charging slot 40.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A charging device 10 for a rail transit vehicle, which may be a rail vehicle, according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, an automatic charging system 10 according to an embodiment of the present invention includes: the vehicle-mounted charging device 5 is connected with an electric storage device on the railway vehicle, and the vehicle-mounted charging device 5 is used for controlling whether the electric storage device of the vehicle can be charged or not. Specifically, the vehicle charging device 5 may determine whether the power storage device is charged according to the actual condition of the vehicle, for example, after the vehicle enters the station, the vehicle charging device 5 may be docked with the external power supply apparatus 30, and the power supply apparatus 30 is connected to the charging slot 40, so that the vehicle charging device 5 may charge the power storage device. When the power storage device is fully charged, the vehicle-mounted charging device 5 may automatically turn off the power supply, or when the vehicle needs to go out of the station, the vehicle-mounted charging device 5 may automatically turn off the power supply. The vehicle-mounted charging device 5 may be a vehicle-mounted charger, and the vehicle-mounted charging device 5 may include a power storage device controller that controls charging of the power storage device.
The vehicle-mounted charging device 5 is electrically connected with the collector shoe 2, when the rail transit vehicle enters a station, the collector shoe 2 extends out of the vehicle body 20 of the vehicle, so that the collector shoe 2 can be connected to external power supply equipment 30, current can be guided to the vehicle-mounted charging device 5 from the external power supply equipment 30, and the external power supply equipment 30 charges the power storage device through the vehicle-mounted charging device 5. Therefore, the vertical distance between the position of the vehicle body after entering the station and the external power supply equipment 30 is fixed, so that the collector shoe 2 can be accurately butted with the external power supply equipment 30 after extending out of the vehicle body 20, and the problems of inaccurate butting and deviation can be avoided.
When the rail transit vehicle is out of the station, the collector shoe 2 is accommodated in the vehicle body 20, it should be explained that the position of the collector shoe 2 in fig. 1 is the position of the collector shoe 2 when the rail transit vehicle is out of the station, the position of the collector shoe 2 in fig. 2 is the position of the collector shoe 2 when the rail transit vehicle is in the station, the collector shoe 2 is communicated with the external power supply equipment 30, current can flow from the external power supply equipment 30 to the collector shoe 2, the collector shoe 2 takes power from the external power supply equipment 30 to charge the electric storage device of the vehicle, and when the rail transit vehicle is out of the station, the collector shoe 2 is disconnected from the external power supply equipment 30 to stop charging the electric storage device of the vehicle. Thus, the collector shoe 2 can be freely switched between the charging position and the storage position.
In addition, the collector shoe 2 is arranged on the rotating shaft 4, when the electric storage device of the vehicle needs to be charged, the driving piece 3 drives the collector shoe 2 to reach the position of the collector shoe 2 in figure 4, when it is not necessary to charge the electric storage device of the vehicle, for example, when the vehicle is out of the station, the driver 3 drives the collector shoe 2 to the position of the collector shoe 2 in fig. 5, in the process, the collector shoe 2 is driven by the driving piece 3 to charge the electric storage device, when the electric storage device of the vehicle is charged, the collector shoe 2 does not need to be pulled down manually to be connected with the external power supply equipment 30, after the power storage device of the vehicle is charged, the collector shoe 2 does not need to be manually pulled out of the external power supply equipment 30 and put back, the process of manually connecting the charging device 10 for the rail transit vehicle with the external power supply equipment 30 can be omitted, people can be prevented from getting an electric shock, and the charging safety of the vehicle can be improved.
It should be noted that, in the conventional vehicle, before the power storage device is charged by the power supply apparatus 30, the worker is required to manually operate the vehicle, so that the risk factor is significantly large, and even if the partially insulated operable position exists, the worker still has a certain influence on the work.
Alternatively, as shown in fig. 1, 2, 4 and 5, the collector shoe 2 is arranged on a rotating shaft 4, the collector shoe 2 can rotate around the rotating shaft 4, the manually controlled driving member 3 can drive the collector shoe 2 to rotate around the rotating shaft 4, and the collector shoe 2 extends outwards, so that the collector shoe 2 can be switched between a charging position and a storage position, when the collector shoe 2 is located at the charging position, the collector shoe 2 extends out of the vehicle body 20, and when the collector shoe 2 is located at the storage position, the collector shoe 2 is stored in the vehicle body 20, so that the charging and charging stopping work can be realized. It can be understood that, pivoted mode can be so that collecting shoe 2 changes in the position of charging and accomodates the position naturally, and the conversion is laborsaving moreover, and correspondingly, driving piece 3 drive collecting shoe 2 is also laborsaving relatively to can be with the pressure to driving piece 3, and then can prolong driving piece 3's life, can make the smooth degree of operation better between driving piece 3 and collecting shoe 2 moreover.
The rotating shaft 4 can be a roller, the roller can be well connected with the collector shoe 2 and the driving part 3, and when the driving part 3 does mechanical motion, the position change of the collector shoe 2 can be well controlled through the rotating shaft 4.
Further, the driving member 3 may be a driving handle having a first limit position and a second limit position, the external power supply device 30 is connected to the collector shoe 2 when the driving handle is located at the first limit position, and the second limit position corresponds to the storage position, it should be explained that the external power supply device 30 is disconnected from the collector shoe 2 by manually controlling the driving handle at the first limit position when the power storage device of the vehicle is charged, and by manually controlling the driving handle at the second limit position when the power storage device of the vehicle is stopped, specifically, as shown in fig. 1 and 2, the position of the driving handle located at the lower side is the first limit position, and the position of the driving handle located at the lower side is the second limit position. It should be noted that, through setting up first extreme position and second extreme position rationally, can be so that collecting shoe 2 just switches between charging position and storage position, the problem of rotation deviation can not appear to can be favorable to guaranteeing collecting shoe 2 and outside power supply unit 30's butt joint accuracy.
As shown in fig. 4 and 5, the first limit position of the driving handle refers to the position of the driving handle in fig. 4, the second limit position of the driving handle refers to the position of the driving handle in fig. 5, when the driving handle is at the first limit position, the collector shoe 2 is at the charging position, the collector shoe 2 is connected with the external power supply device 30, and when the driving handle is at the second limit position, the collector shoe 2 is at the storage position, the collector shoe 2 is disconnected from the power supply device 30, and at this time, the external power supply device 30 cannot charge the power storage device of the vehicle.
Specifically, as shown in fig. 1 and 2, the driving handle is disposed in a cab 201 of the vehicle, so that the driving handle can be conveniently controlled by a person, and thus, the user satisfaction can be improved.
According to a specific embodiment of the invention, a pull wire is connected between the driving handle and the rotating shaft 4, when the driving handle moves between the first limit position and the second limit position, the pull wire can pull the rotating shaft 4 to rotate forward or backward at the same time, and then the rotating shaft 4 can drive the collector shoe 2 to switch between the charging position and the storage position, so that the charging and the power-off work can be realized.
According to another embodiment of the present invention, the driving handle is provided with a rack, the rotating shaft 4 is provided with a gear, the rack is engaged with the gear, when the driving handle moves between the first limit position and the second limit position, the rotating shaft 4 rotates forward or backward together through the cooperation of the rack and the gear, so that the operation purpose of the driving handle driving the rotating shaft 4 to rotate can be achieved, and meanwhile, the structural reliability of the cooperation of the rack and the gear is good, so that the operation reliability of the automatic charging system 10 can be improved.
According to another embodiment of the present invention, the shaft 4 may be a motorized roller, and the driving handle drives the motorized roller in the first limit position and the second limit position in opposite directions, so that the collector shoe 2 can be switched between the charging position and the storage position, and the automation degree of the automatic charging system 10 can be improved, thereby improving the user satisfaction.
Optionally, the vehicle body 20 has a storage groove and an opening/closing door, the opening/closing door is used for opening/closing the storage groove, and the collector shoe 2 is located in the storage groove when in the storage position, and it should be explained that when the collector shoe 2 is located in the storage groove, the opening/closing door closes the storage groove, and thus the arrangement can play a role of protecting the collector shoe 2, and can prevent the collector shoe 2 from being damaged by the external environment, and when the collector shoe 2 is located outside the storage groove, the opening/closing door opens the storage groove, so that the collector shoe 2 can be smoothly moved out of the storage groove, and therefore it can be ensured that the collector shoe 2 and the external power supply device 30 can be smoothly docked. It can be understood that, in the vehicle driving process, the switching door is in the closed state, and collecting shoe 2 can be accomodate in the switching door to the switching door can be kept apart collecting shoe 2 with external environment, can avoid external environment to cause the damage to collecting shoe 2. In addition, when in use, the opening and closing door can be opened manually by a worker, and can also be directly pushed by the collector shoe.
Further, as shown in fig. 1 and 2, the automatic charging system 10 may further include: the system comprises an entrance button 1 and a central control unit, wherein the entrance button 1 is electrically connected with a vehicle-mounted charging device 5, and when a vehicle enters the station, the entrance button 1 is pressed, so that the vehicle-mounted charging device 5 can be controlled to start the circuit pre-charging before the vehicle enters the station. It is understood that the circuit precharging can effectively shorten the preparation time of the external power supply apparatus 30 before charging the accumulator.
In addition, when the entry button 1 is triggered, the central control unit (not shown in the figure) transmits a vehicle entry signal to the external power supply device 30, so that the external power supply device 30 provides a charging power source for vehicle charging when receiving the vehicle entry signal, thereby enabling the work of charging the vehicle. The signal transmission between the central control unit and the external power supply device 30 is wireless, and the wireless connection is not limited.
Specifically, the central control unit is further used for controlling the vehicle to send the arrival prompting message when the vehicle is a preset distance away from the arrival, and then the driver can obtain the arrival prompting message, wherein the arrival prompting message of the vehicle can be in various forms, such as: can be provided with the warning light on the panel board of vehicle, after central control unit control vehicle sent the prompt message that arrives at a station, the warning light can have the colour change, reminds driver's vehicle to arrive at a station, sets up like this and can make things convenient for the driver to obtain the vehicle prompt message that arrives at a station to can guarantee that the driver can trigger button 1 that arrives at a station.
In addition, the vehicle arrival prompting information can also be an audible alarm, and after the central control unit controls the vehicle to send the arrival prompting information, the audible alarm can send out the sound of alarming, so that the arrangement can be more convenient for the driver to obtain the vehicle arrival prompting information, and further the driver can be ensured to trigger the arrival button 1, and further the vehicle charging can be ensured.
Specifically, when a driver presses a station entering button 1 by hand, the vehicle reports a station and sends a charging command, then a central control unit of the vehicle controls the vehicle to send vehicle station entering prompt information to an external power supply device 30, after the vehicle enters the station, the driver manually stirs a driving piece 3 to enable the driving piece 3 to reach a first limit position, the driving piece 3 mechanically enables a roller to act to stretch out of a collecting shoe 2, the collecting shoe 2 rotates around a rotating shaft 4 to a charging position, then the collecting shoe 2 is connected with the external power supply device 30, and the collecting shoe 2 gets electricity from the external power supply device 30 on the station to charge an electric storage device of the vehicle.
Specifically, the automatic charging system 10 may further include: the distance sensor has a distance measuring function and can measure the distance between a vehicle and a station before the vehicle enters the station, the distance sensor is electrically connected with the entering button 1, the distance sensor sends a signal to the entering button 1 when the distance sensor is away from the preset distance of entering the station, then the entering button 1 controls the power storage device controller 5 to start a circuit for pre-charging, and the working performance of the automatic charging system 10 can be improved.
Alternatively, the collector shoe 2 may include: anodal region, negative pole region and insulating area, anodal region is corresponding with anodal, and the negative pole region is corresponding with the negative pole, and insulating area keeps apart anodal region and negative pole region, so set up the work of charging that can realize automatic charging system 10 better.
For example, the collector shoe 2 may be rectangular, a positive electrode region and a negative electrode region are provided at opposite sides of the rectangle, and then the main body is provided as an insulating region, wherein the positive electrode region and the negative electrode region may be metal sheets.
Further, as shown in fig. 1 and 2, the vehicle-mounted charging device 5 may include: a first switch tube 51, a second switch tube 52, a third switch tube 53 and a fourth switch tube 54, wherein one end of the first switch tube 51 is connected with one end of the second switch tube 52, and the junction of the first switch tube 51 and the second switch tube 52 has a first node, the other end of the first switch tube 51 is connected with one end of the third switch tube 53, and the junction of the first switch tube 51 and the third switch tube 53 has a second node, the other end of the second switch tube 52 is connected with one end of the fourth switch tube 54, and the junction of the second switch tube 52 and the fourth switch tube 54 has a third node.
In addition, the other end of the third switching tube 53 is connected with the other end of the fourth switching tube 54, a fourth node is arranged at the connection position of the third switching tube 53 and the fourth switching tube 54, the first node is connected to the negative electrode of the electric storage device, the second node is connected to the collector shoe 2, the third node is connected to the collector shoe 2 through the first inductor 55, the fourth node is connected to the positive electrode of the electric storage device through the second inductor 56, and an energy storage capacitor is further connected between the first node and the fourth node and can store electric energy, so that the electric storage device of the vehicle can be charged better.
Specifically, when the second switch tube 52 and the fourth switch tube 54 are turned off, the third switch tube 53 is turned on, and at this time, the current passes through the third switch tube 53, the second inductor 56 and the first switch tube 51 in sequence, and the current flows from the external power supply device 30 to the collector shoe 2, then the current flows from the collector shoe 2 to the vehicle-mounted charging device 5, the current flows through the first inductor 55 and the third switch tube 53, and the charging current alternating-current power supply charges the energy storage capacitor through the third switch tube 53 and the first switch tube 51 to complete energy storage, and simultaneously the voltage stabilizing capacitor charges the electric storage device.
When the power frequency alternating current power supply is in a negative half cycle, the second switching tube 52 and the fourth switching tube 54 are kept off all the time, the third switching tube 53 is kept on all the time, and the first switching tube 51 controls the duty ratio signal to be alternately switched on and off, so that the work of adjusting the charging current can be realized.
In addition, when the first switch tube 51 and the third switch tube 53 are turned off, the second switch tube 52 is turned on, at this time, current passes through the third switch tube 53, the second inductor 56 and the second switch tube 52 once, current flows through the first inductor 55 and the third switch tube 53, the charging current alternating current power supply charges the energy storage capacitor through the third switch tube 53 and the first switch tube 51 to finish energy storage, and the voltage stabilizing capacitor charges the power storage device, and in a negative half cycle of the power frequency alternating current power supply, the first switch tube 51 and the third switch tube 53 are always turned off, the second switch tube 52 is always turned on, and the fourth switch tube 54 controls the duty cycle signal to be alternately turned on and off, so that the purpose of adjusting the charging current can be achieved.
Specifically, when the vehicle is 50m away from the station for traveling, the entry button 1 is pressed, the vehicle reports and sends a charging command, the electric storage device controller 5 turns on the circuit precharge after receiving the command, the precharge is completed within 3s, when the vehicle stops, the driving handle is manually controlled to reach a first limit position, the driving handle mechanically acts to enable the collector shoe 2 to rotate around the rotating shaft 4 to a charging position, at the moment, the collector shoe 2 takes electricity from the power supply equipment 30 to charge the power storage device of the vehicle, when the vehicle is out of the station, the driving handle is manually controlled to reach the second limit position, the driving handle mechanically acts to enable the collector shoe 2 to rotate around the rotating shaft 4 to the storage position, the collector shoe 2 returns to the storage groove, and the entering button 1 is reset to issue a charge exiting command, and the power storage device controller 5 exits the charge mode upon receiving the command, so that the train can exit the station.
As shown in fig. 3, the application method of the automatic charging system 10 according to the embodiment of the present invention includes the following steps: before the vehicle arrives at the station, the external power supply device 30 sends a vehicle arrival signal, and the external power supply device 30 provides charging power when receiving the arrival signal, it should be explained that before the vehicle arrives at the station, the central control unit of the vehicle sends the vehicle arrival signal to the external power supply device 30, so that the external power supply device 30 provides charging power for charging the vehicle when receiving the vehicle arrival signal, thereby realizing the work of charging the vehicle.
In addition, after the vehicle enters the platform, the collector shoe 2 is driven to be switched from the storage position to the charging position, so that the external power supply device 30 charges the power storage device of the vehicle through the vehicle-mounted charging device 5, and it should be noted that after the vehicle enters the platform, a driver manually dials the driving piece 3 to move from the second limit position to the first limit position, and meanwhile, the collector shoe 2 is switched from the storage position to the charging position, at this time, the collector shoe 2 is communicated with the external power supply device 30, so that the power storage device of the vehicle can be charged.
Alternatively, the automatic charging system 10 may include a central control unit that transmits a station-entering signal to the external power supply apparatus 30 when the vehicle is at a predetermined distance from the external power supply apparatus 30 before the vehicle enters the station, and the external power supply apparatus 30 supplies a charging power source for charging the vehicle when receiving the vehicle station-entering signal, so that the operation of charging the vehicle can be realized.
Further, the automatic charging system 10 may include: the distance sensor is electrically connected with the central control unit, the distance sensor has a distance measuring function, the distance between a vehicle and a station before the vehicle enters the station can be measured, the distance sensor sends a signal to the central control unit when the vehicle detects that the vehicle is away from the external power supply equipment 30 by a preset distance before the vehicle enters the station, the central control unit sends a station entering signal to the external power supply equipment 30, the measured station entering distance can be more accurate due to the arrangement, and the working performance of the automatic charging system 10 can be improved.
In addition, the station entering button 1 is electrically connected with the vehicle-mounted charging device 5, when the station entering button 1 is pressed before the vehicle enters the station, the vehicle-mounted charging device 5 can be controlled to start the circuit pre-charging before the vehicle enters the station, and when the station entering button 1 is triggered, the central control unit of the vehicle sends a vehicle station entering signal to the external power supply equipment 30, so that the external power supply equipment 30 provides charging power for the vehicle charging when receiving the vehicle station entering signal, and the vehicle charging work can be realized.
Specifically, the central control unit is also used for controlling the vehicle to send the arrival prompting information when the vehicle is away from the arrival at the preset distance, and then the driver can obtain the arrival prompting information of the vehicle, wherein the arrival prompting information of the vehicle can be in various forms.
Specifically, when a driver presses a station entering button 1 by hand, the vehicle reports a station and sends a charging command, then a central control unit of the vehicle controls the vehicle to send vehicle station entering prompt information to an external power supply device 30, after the vehicle enters the station, the driver manually stirs a driving piece 3 to enable the driving piece 3 to reach a first limit position, the driving piece 3 mechanically enables a roller to act to stretch out of a collecting shoe 2, the collecting shoe 2 rotates around a rotating shaft 4 to a charging position, then the collecting shoe 2 is connected with the external power supply device 30, and the collecting shoe 2 gets electricity from the external power supply device 30 on the station to charge an electric storage device of the vehicle.
Alternatively, the automatic charging system 10 has an entry button 1, and the entry button 1 may control the in-vehicle charging device 5 to turn on the circuit pre-charging, specifically, before the vehicle enters the station, the driver presses the entry button 1 with a hand, and then the in-vehicle charging device 5 turns on the circuit pre-charging after receiving the charging command.
Further, the automatic charging system 10 may further include a distance sensor, and when the vehicle is a predetermined distance away from the station, the station entering button 1 receives a signal from the distance sensor, and then the station entering button 1 controls the vehicle-mounted charging device 5 to start the circuit pre-charging, so as to further improve the working performance of the automatic charging system 10.
Specifically, the predetermined distance is between 30m and 100m, for example, the predetermined distance may be 50m, which provides sufficient time for the circuit pre-charging, so that the circuit pre-charging operation can be better realized, and the operation reliability of the automatic charging system can be ensured.
Among them, the in-vehicle charging device 5 may have the following operations: when the second switch tube 52 and the fourth switch tube 54 are turned off, the third switch tube 53 is turned on, and at this time, the current passes through the third switch tube 53, the second inductor 56 and the first switch tube 51 in sequence, and the current flows from the external power supply equipment 30 to the collector shoe 2, then the current flows from the collector shoe 2 to the vehicle-mounted charging device 5, the current flows through the first inductor 55 and the third switch tube 53, and the charging current alternating current power supply charges the energy storage capacitor through the third switch tube 53 and the first switch tube 51 to complete energy storage, and simultaneously the voltage stabilizing capacitor charges the electric storage device.
When the power frequency alternating current power supply is in a negative half cycle, the second switching tube 52 and the fourth switching tube 54 are kept off all the time, the third switching tube 53 is kept on all the time, and the first switching tube 51 controls the duty ratio signal to be alternately switched on and off, so that the work of adjusting the charging current can be realized.
In addition, when the first switch tube 51 and the third switch tube 53 are turned off, the second switch tube 52 is turned on, at this time, current passes through the third switch tube 53, the second inductor 56 and the second switch tube 52 once, current flows through the first inductor 55 and the third switch tube 53, the charging current alternating current power supply charges the energy storage capacitor through the third switch tube 53 and the first switch tube 51 to finish energy storage, and the voltage stabilizing capacitor charges the power storage device, and in a negative half cycle of the power frequency alternating current power supply, the first switch tube 51 and the third switch tube 53 are always turned off, the second switch tube 52 is always turned on, and the fourth switch tube 54 controls the duty cycle signal to be alternately turned on and off, so that the purpose of adjusting the charging current can be achieved.
According to the vehicle provided by the embodiment of the invention, the vehicle can be a rail vehicle, the automatic charging system 10 is arranged and installed on the vehicle, the automatic charging system 10 can omit the process of manually connecting the charging device 10 for the rail transit vehicle with the external power supply equipment 30, people can be prevented from getting electric shock, and the charging safety of the vehicle can be improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A charging device for rail transit vehicles, comprising:
an electrical storage device provided on the vehicle for supplying power to the vehicle;
a collector shoe electrically connected to the electrical storage device;
the collector shoe is arranged on the rotating shaft;
when the vehicle enters a station, the driving piece drives the collector shoe to rotate around the rotating shaft, so that the collector shoe extends out of the vehicle body of the vehicle and is connected with external power supply equipment, and the external power supply equipment charges the power storage device through the collector shoe; when the vehicle leaves the station, the driving piece drives the collector shoe to rotate around the rotating shaft, so that the collector shoe is accommodated in the vehicle body;
the vehicle-mounted charging device starts a circuit for pre-charging when the station-entering button is pressed before the vehicle enters the station,
the vehicle-mounted charging device comprises a first switching tube, a second switching tube, a third switching tube and a fourth switching tube, one end of the first switch tube is connected with one end of the second switch tube and is provided with a first node, the other end of the first switching tube is connected with one end of the third switching tube and is provided with a second node, the other end of the second switching tube is connected with one end of the fourth switching tube and is provided with a third node, the other end of the third switching tube is connected with the other end of the fourth switching tube and is provided with a fourth node, the first node is connected to a negative electrode of the electrical storage device, the second node is connected to the collector shoe, the third node is connected to the collector shoe through a first inductor, the fourth node is connected to the positive electrode of the electric storage device through a second inductor, and an energy storage capacitor is further connected between the first node and the fourth node.
2. The charging device for rail transit vehicles according to claim 1, wherein the driving member is a driving handle having a first limit position and a second limit position, the external power supply apparatus is connected to the collector shoe when the driving handle is located at the first limit position, and the external power supply apparatus is disconnected from the collector shoe when the driving handle is located at the second limit position.
3. The charging device for a rail transit vehicle of claim 2, wherein the drive handle is disposed within a cab of the vehicle.
4. The charging device for rail transit vehicles according to claim 2, wherein a pull wire is connected between the driving handle and the rotating shaft.
5. The charging device for the rail transit vehicle as claimed in claim 2, wherein the driving handle is provided with a rack, the rotating shaft is provided with a gear, and the rack is meshed with the gear.
6. The charging device for rail transit vehicles according to claim 2, wherein the shaft is a motorized pulley, and the driving handle drives the motorized pulley in opposite directions in the first limit position and the second limit position.
7. The charging device for a rail transit vehicle according to claim 1, wherein the vehicle body has a storage groove and an opening-closing door for opening and closing the storage groove, and the collector shoe is located in the storage groove in the storage position.
8. The charging device for rail transit vehicles according to claim 1, further comprising: and when the station entering button is triggered, the central control unit sends a station entering signal to the external power supply equipment so that the external power supply equipment provides a charging power supply when receiving the station entering signal.
9. The charging device for rail transit vehicles according to claim 8, wherein the central control unit is further configured to control the vehicle to send out an arrival prompt message when the vehicle is a predetermined distance away from an arrival so that a driver triggers the arrival button.
10. The charging device for a rail transit vehicle of claim 1, wherein the collector shoe comprises: the cathode structure comprises a cathode region, an anode region and an insulation region, wherein the cathode region corresponds to the cathode, the anode region corresponds to the anode, the insulation region isolates the cathode region from the anode region.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190908.1A CN110239351B (en) | 2018-03-08 | 2018-03-08 | Charging device for rail transit vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190908.1A CN110239351B (en) | 2018-03-08 | 2018-03-08 | Charging device for rail transit vehicle |
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| CN110239351A CN110239351A (en) | 2019-09-17 |
| CN110239351B true CN110239351B (en) | 2021-11-12 |
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| CN201810190908.1A Active CN110239351B (en) | 2018-03-08 | 2018-03-08 | Charging device for rail transit vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11855379B2 (en) | 2021-11-24 | 2023-12-26 | Caterpillar Inc. | Slidable nested conductors |
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| CN110239351A (en) | 2019-09-17 |
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